Question

Дано : ABC A (-4;5) , B (5,-4) , C(-5;-4) Найти |AB| + |CB|

Answer 1

|АВ|=|-4-5|=|-9|=9
|АВ|=|5-(-4)|=|9|=9
|ВС|=|5-(-5)|=|10|=10
|ВС|=|-4-4|=|-8|=8
|АВ|=18
|ВС|=18
|АВ|+|ВС|=18+18=36